An Emergency Signal is a visual or auditory alert used to indicate a situation that requires immediate attention or action. These signals can take various forms, such as flashing lights, sirens, or specific sound patterns. They are commonly used in emergencies like fires, natural disasters, or medical situations to inform people of danger and guide them to safety. Emergency signals are often standardized to ensure quick recognition and response. For example, the siren of an ambulance or the flashing lights of a police car serve as clear indicators of an emergency. Understanding these signals is crucial for public safety and effective emergency response.